Jack Du Brul Books in Order

A string of mysterious deaths leads Isaac Bell to a hidden invention with huge consequences—and a connection to the era’s most famous ship. Racing against powerful interests, Bell must uncover the secret before it vanishes into the Atlantic.

With war looming, Isaac Bell hunts a group of saboteurs targeting industry and transport at the worst possible time. The case pushes him through factories, rail lines, and back-channel plots as he races to stop a coordinated strike.